In Only My Articles you can check only your articles whether is duplicate and In Check All Articles they will check duplicate or copy content in all website. It is tool of the google . In ISC you can whether your article is used by other website or not. You can click on shown links and Google will check the post materials in all other websites and show the links which have same material as you posted with highlighted. You can file a complaint in DMCA if anyone uses your material without your permission. You can also contact the author of the content to remove your content from their post or you can warn him.
'Idhuvum Kadandhu Pogum "
Even this challenging situation would ease